olsen



March 8, 1932. .1. c. OLSEN, JR.. ET AL 1,848,795

STOVE Filed June 30, 1930 inn \mav mm Patented Mar. 8, 1932 JAMES c. OLSEN, JR.,'HARRY La BOTTLE, AND FRANK w. JOHNS, or ANDERSQN, INDIANA srovn V Application filed il'i1ne30, 1930. Serial No. 464,762.

Our invention relates to the manufacture of stoves, and in general its object is to con-' struct new means for attaching the'legst the bottom of a stove and for attaching the basestrips to the legs, whe'rebyamong other advantages the assembly and disassembly of these parts is facilitated, the leg'supportof the stove is independent of the base-strips, and the legbrackets to which the base-strips are bolted are provided with cored holesfor the bolts. 7

One feature of our invention consists in providing at the corners of the stove dovetail joints between the stove-bottom and legs consisting of tenons on the legs-to seat in and interlock with mortises in the stove-bot tom, and providing the leg-tops and the store-bottom with bolt-holes arranged to l i a. register when these parts are assembled to rea r l is ceive attaching bolts.

Another feature of our invention consists in providing the legs and base-strips with inwardly extending "brackets having" bolt- 7 holes arranged to register when these'parts 25- are assembled to receive attaching bolts, and

also having interengaging devices constructparts are d a ntoed to interlock when the gether by their bolts; 1

Another feature of our invention consists in a core tin designed to form a cored hole in the cast leg-bracket at an angle .of 45 degrees more or less the pattern.

Other improvements and advantages will appear from the accompanying detailed dis-f v I are correspondingly splayed and beveled to closure of our inventio In the accompanying drawings which illustrate practical embodiments of ourimprove V v w bottom on the legs.

igure 4 is a sectional view on th'e lin-e 5 in Figure 3 withthe bolt and nut omitted; Figure 5 is a perspective side view of one of the core tins for the leg brackets:

to the vertical draw-0f V vided at its ends with a n bracket 24 fittin'gjthe' contour of a leg-wing a 18 and havingv a; forked orbifurcatedhead Figure 6 is an end view of the same with its sleeve. rammed with core sand,a nd

" Figure 7 is a sectional View on the line 77' and chamber each vcorner are inwardly extended tofo'rm a horizontal cornershelf which isprovided with ajbolt hole 16 inside the webs to receive a screw threaded'bolt 17, the underside of the shelf preferably being co n-itersun'k around the hole to providean angular seat for a retaming nut (not shown) to hold thebolt-head down on the" shelf. Eachlegha's angular side walls or wings'18 which are provided at their'upper ends with tenons 19 constructed to enter 'and seat in the mortises 13 when the parts are assembled, and each leg has at its upper end an inwardly 'projecti'ngllug 20 in the ,angleof itswalls constructed to rest against an asSOciatedsheIf 15 andihaving a bolt-hole 21 in line with its hole "16 .to' receive the bolt, a wing nut 22 being employed tohold the parts in assembly. In practice the mortises in the stove-bottom are undercut and downwardly and outwardly flared or inclined, andthetenons ontheleg-tops conform to the'mortises so that theparts can be'readily assembled by seating the stove- Each of the base strips 23 extendingbetween the legs below the frame is pro 25 to receive and seat theghead end of a screw threaded-bolt 26. Each leg-wing has anangular metallic bracket cast with itand con section of the bottom angle-V n inset angular sisting of; a spaced pair of parallel inwardly directed horizontal ribs or flanges 27 inclined or beveledfrom their inner ends toward leg brackets, in the mold their outer ends and there formed with straight faces 28 at right angles to the leg wing to abut against the head 25, and a vertical cross-web 29 at the outer ends of the flanges 27 provided with a bolt-hole in line with the forked seat in the head 25, so that when the nut 30 on the bolt 26 is drawn against the shelf the base strips are fastened to the legs. The ends of the heads are formed with horizontal lateral extensions 25 which form seats for the leg-brackets and support the base-strips in position on the legs and against the frame, these parts being:

arranged so that when the nuts are turned down the base-strips are flush with the frame and leg-wings. The bolt-heads point away from the legs to afford ample room for the assembler to seat a screw driver in them. and turn them to, rotate the bolts. and draw the parts together, the nuts, being held against rotation during assembly or disassembly of the parts by any suitable means and prefers ably by the flanges. of the brackets. .In practice we prefer to. make the bolt-holes in the when the leg is cast, and for this purpose we provide a core tin made. from a suitable metal blank bent to form a rectangular base 31, triangular wings 32, inner end wall 33, bridge 34 and outer wall 35., the wings, and wall 33 have attachsideribs 27 of; the brackets-adjacent the wings.-

' are oppo t y e each other;

ing clips 8.6 and'37 respectively constructed to be bent as shown to hold these parts: in erected position, and a sleeve 38 is supported in the Walls 33. and 35. to form a cored bolthole in the cross-web 29; of thebracket. The

ells nd 5. r incl ned or eveled inwardly from the bridge 34toward-their ends, and; the bridge extends slightly beyondthe wall 33, as shown in Fig t and 6. After the ore-tin is thus formed a mixture of black an n inder mater al' s ammed into the space oetween the wings and into the sleeve as indicated at a, so that the device then provides a coresbox, and it. P ir or themv t d in a hape patter formed with, recesses to. receive their bases 31 and the. free ends: of theirwalls and withthe core-boxes inclined to each other and the faces, of he rammed material a opposite seated in the mold-drag in. position with rela-. tionto thev leg-pattern and. thedrag is rammed with, sand, the, pattern carrying the coreboXes having triangular wings outside the I 3-2 to formmatricesin the sand for the metal boxes are at an angle-to each, other having its apex toward the. open. side of the drag, and, thewings 32 and walls. 35 are inclined,

upwardly when thepait itsremoved: fromv he r g; it can wil r ma n n pl e. h metal: po re o f rm. the be it. f ms he the pattern and its core-boxes areforming the flanges 2,7. As. the corebe lifted andstripped from the boxes without disturbing them and they 32 and the cross-webs 29 of the brackets in the spaces between the walls 33 and 35 and around the sleeves 38, all integral with the leg, and after the metal cools the rammed material a is removed. We thus form a cored hole in each bracket when the leg is cast and eliminate the necessity of boring these boltholes in the machine shop. The extended ends of the bridge 34 beyond the wings 32 form sharp corners on the ribs 27 and prevent formation of fins or burrs on the castin WVhen the parts are assembled the attaching bolts and their co-operating parts are all concealed, and when the usual sheet metal or iron body of the stove is positioned on the frame it covers the dovetail connections between the stove-bottom and its legs.

We claim:

In a Stove the combination of a bottom frame having vertical and horizontal portions around its corner, the latter portions forming an integral corner shelf and the former portions having downwardly flared cross mortises on opposite sides of the corner, a leg having tenons constructed to seat in said mortises and an inwardly projecting lug below said shelf, and means to clamp the shelf on the lug.

2. In a stove, a leg having angular side walls provided with upwardly directed tenons and an inwardly extending lug between the. latter, a stovebottom having downwardly flared mortises on opposite sides of its corner to receive said tenons,,a corner shelf between said mortises and resting on said lug, said lug and shelf having alined bolt-holes, and bolts. securingsaid parts together,

3., In a stove the combination of a frameand cornerlegs, base-strips extending betweenthe legsbelow the frame, interengaging brackets on the rear faces of the strips and legs constructed to. interlock and support the strips when they are assembled in position on the legs, and means clamping said brackets together.

I a. stove. the combination of, a. frame and angular corner legs, base-strips. extending between the legs below the frame,.interengaging brackets integral with. the. strips and legs and constructed to. supportv the strips when they are assembled in position. on. the. legs, each leg bracket having a cored bolthole and each strip bracket having a bo1tseat alined with a bolt-hole, and screw bolts clamping said bracketstogether.

n astove, a metal ic leghavingan nlar side walls provided on. their: inner; faceswith integralbrackets each consisting; of a. spaced pair of horizontal flanges and across-web, and a, core tin composed of a base between the bottom of said flanges, wings adjacent saidfianges, spaced walls-on oppositesidesof said onoss web, and a sleeve betweensaid walls and forming a; cored bolt-hole; in said cross-web.

6. In a stove, a metallic leg havin angular side walls provided on their inner aces with integral brackets each consisting of a spaced pair of horizontal flanges and a cross-web,

and a core tin composed of a base between the bottoms of said flanges, wings adjacent said flanges, spaced walls on opposite sides of said cross-web, and a sleeve between said walls and forming a cored bolt-hole in said crossweb, said wings being beveled upwardly and outwardly from their inner ends away from the angle of said side walls.

7. In a stove, a core tin providing a cored hole in the web of a metallic bracket cast integral with a stove leg and consisting of a rectangular base, an inner wall at an angle to said base, triangular wings connecting said wall and base, an outer wall spaced from and parallel with said inner wall, a bridge con-- 29 necting said walls at their outer ends, and a sleeve carried by said walls intermediate their ends, said walls being beveled inwardly from their outer ends towardtheir inner ends.

In testimony whereof we aflix our signatures.

JAMES C. OLSEN, JR. HARRY L. BOTTLE. FRANK JOHNS. 

